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EU Industry Days 2025

Keylany Hassine

Founder and CEO of Istya

Keylany

Keylany Hassine is a committed entrepreneur at the crossroads of technological innovation and environmental impact. 
 

Founder and CEO of Istya, he has developed a solution based on artificial intelligence that improves indoor air quality while optimizing the energy efficiency of buildings. His ambition: to reconcile technology and sustainability to build a healthier and more resilient future. 

Passionate about climate and social issues, Keylany is also actively involved in civil society through initiatives that promote diversity, sustainability, and inclusive innovation. 

A graduate in entrepreneurship and business strategy, he has enriched his career at prestigious companies such as LVMH, where he developed a unique strategic vision at the intersection of technology and environmental impact. 

Today, through Istya, he designs and deploys concrete solutions that reduce CO₂ emissions while lowering the energy consumption of buildings. Istya’s technology is used in flagship projects such as the Olympic Village and by municipalities like the city of Aulnay-sous-Bois. 

In 2024, Istya was featured in Challenges magazine’s ranking of the 100 startups to invest in, a recognition that confirms its strong growth potential and its concrete commitment to a more sustainable world.